相片效果能如肉眼見到的一樣嗎?望有心人幫忙!

樓主問之問題很有深度，例如色差/光暗。事實人眼與相機最大不同就是此兩點﹕光暗及色彩差異。
如深入研究，為何眼睛能分別/分析不同光暗之影像(同一時間)，是因人腦實在太機靈，能獨立處理不同區域之影像資料，令到不同光暗之環境，同樣能清楚看到/分析到。在數碼相機中，部分相機已加入"動態範圍增強模式"，就是模仿此人眼功能，當然效果還是不及人眼，但將來發展如何就未可知。現在很多人還是認為此功能是味精功能，不肖去用，因菲林相機是沒有此能力的，數碼相機以此功能拍出之相片就沒有菲林味道。
有關色差問題，就與感光完件先天性有關，一片感光晶片，是同時感應紅、綠、藍，這是模仿人眼之感受細胞而設計出來(人眼之感受細胞是紅、綠、黑白)。其感受藍、綠兩色通常是以45:55或55:45之比例製造出來，在技術上無法做到人眼之黑色深度比例，因此就需要利用軟件去修正，所以各個牌子相機都有些少不同色差。個人覺得在三萬元以內之相機，只有sigma一部相機使用獨立三層感光晶片，才有機會模仿真人眼睛看到之色彩。

2009-06-08 20:30:24 補充：
sigma之sd-14或sd-15都過萬元，不適合新手使用。你應考慮日本各牌子之入門相機。至於有關"動態範圍增強模式"，sony所有dslr都有；nikon就是d80以後推出之相機就有；canon就要500d才有該功能，估計以後都會加上此功能。

cannot be excretlly the same.
Because we see the colour, lightness a slightly different to camara and film ( traditional).
That s why , usually when we see a landcape by our eyes is not as pretty in the picture.

Of course, if you really want to make the picture result as simlar as you see, you have to try to use different ISO, lightness, different type of film. to get the closest result to your eye.

Because our eye sight is uniqe... so I can't really tell what to set excretly.

2009-06-09 01:52:35 補充：
Let's put it in this way. some people have more sensitive in light frequcey. Some doesn't. Even a very small change in colour, some people can figuer out but camara can't.

2009-06-09 01:52:47 補充：
However, the number of those people is small. Therefore in average, camara can produce more sharp picture than we.
for colour sharpness, camara will do better than a human who has normal vision.

2009-06-09 01:58:30 補充：
For reality, human can produce more real picture than camara. For example, when in dark, we can see the items in b/w. if you are using camara with flash. will produce the orignal color of items